1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.mms.ui; 18 19 import android.app.AlertDialog; 20 import android.content.Context; 21 import android.content.DialogInterface; 22 import android.content.DialogInterface.OnClickListener; 23 import android.os.Bundle; 24 import android.util.AttributeSet; 25 import android.view.LayoutInflater; 26 import android.view.View; 27 import com.android.mms.ui.NumberPicker; 28 29 import com.android.mms.R; 30 31 /** 32 * A dialog that prompts the user for the message deletion limits. 33 */ 34 public class NumberPickerDialog extends AlertDialog implements OnClickListener { 35 private int mInitialNumber; 36 37 private static final String NUMBER = "number"; 38 39 /** 40 * The callback interface used to indicate the user is done filling in 41 * the time (they clicked on the 'Set' button). 42 */ 43 public interface OnNumberSetListener { 44 45 /** 46 * @param number The number that was set. 47 */ 48 void onNumberSet(int number); 49 } 50 51 private final NonWrapNumberPicker mNumberPicker; 52 private final OnNumberSetListener mCallback; 53 54 /** 55 * @param context Parent. 56 * @param callBack How parent is notified. 57 * @param number The initial number. 58 */ 59 public NumberPickerDialog(Context context, 60 OnNumberSetListener callBack, 61 int number, 62 int rangeMin, 63 int rangeMax, 64 int title) { 65 this(context, com.android.internal.R.style.Theme_Dialog_Alert, 66 callBack, number, rangeMin, rangeMax, title); 67 } 68 69 /** 70 * @param context Parent. 71 * @param theme the theme to apply to this dialog 72 * @param callBack How parent is notified. 73 * @param number The initial number. 74 */ 75 public NumberPickerDialog(Context context, 76 int theme, 77 OnNumberSetListener callBack, 78 int number, 79 int rangeMin, 80 int rangeMax, 81 int title) { 82 super(context, theme); 83 mCallback = callBack; 84 mInitialNumber = number; 85 86 setTitle(title); 87 88 setButton(DialogInterface.BUTTON_POSITIVE, context.getText(R.string.set), this); 89 setButton(DialogInterface.BUTTON_NEGATIVE, context.getText(R.string.no), 90 (OnClickListener) null); 91 92 LayoutInflater inflater = 93 (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 94 View view = inflater.inflate(R.layout.number_picker_dialog, null); 95 setView(view); 96 mNumberPicker = (NonWrapNumberPicker) view.findViewById(R.id.number_picker); 97 98 // initialize state 99 mNumberPicker.setRange(rangeMin, rangeMax); 100 mNumberPicker.setCurrent(number); 101 mNumberPicker.setSpeed(150); // make the repeat rate twice as fast as normal since the 102 // range is so large. 103 } 104 105 public void onClick(DialogInterface dialog, int which) { 106 if (mCallback != null) { 107 mNumberPicker.clearFocus(); 108 mCallback.onNumberSet(mNumberPicker.getCurrent()); 109 dialog.dismiss(); 110 } 111 } 112 113 @Override 114 public Bundle onSaveInstanceState() { 115 Bundle state = super.onSaveInstanceState(); 116 state.putInt(NUMBER, mNumberPicker.getCurrent()); 117 return state; 118 } 119 120 @Override 121 public void onRestoreInstanceState(Bundle savedInstanceState) { 122 super.onRestoreInstanceState(savedInstanceState); 123 int number = savedInstanceState.getInt(NUMBER); 124 mNumberPicker.setCurrent(number); 125 } 126 127 public static class NonWrapNumberPicker extends NumberPicker { 128 129 public NonWrapNumberPicker(Context context) { 130 this(context, null); 131 } 132 133 public NonWrapNumberPicker(Context context, AttributeSet attrs) { 134 this(context, attrs, 0); 135 } 136 137 @SuppressWarnings({"UnusedDeclaration"}) 138 public NonWrapNumberPicker(Context context, AttributeSet attrs, int defStyle) { 139 super(context, attrs); 140 } 141 142 @Override 143 protected void changeCurrent(int current) { 144 // Don't wrap. Pin instead. 145 if (current > getEndRange()) { 146 current = getEndRange(); 147 } else if (current < getBeginRange()) { 148 current = getBeginRange(); 149 } 150 super.changeCurrent(current); 151 } 152 153 } 154 155 } 156